Railroad motor car



May 11 1926.

E. GRUBLER RAILROAD MOTOR-CAR Filed April 4, 1925 Patented May 1 1,1926.

UNITED STATES EBHARD GR'U'BLER, OF BORSDORF, NEABIEIPZIC, GERMANY.

RAILROAD MOTOR CAR.

Application filed April 4, 1925. Serial No. 20,800.

My invention refers to railroad motor cars for use in town andinterurban traffic, and it more particularly concerns the arrange mentof an internal combustion motor on cars of this type. It is an object ofmy invention to connect the motor with the car in such a manner that themotor can easily be inspected and repaired, without dismantling theframe or the body of the car.

In railroad motor cars driven by an internal combustion motor it hasbeen customary to dispose the motor underneath the car in order toreserve the space available above the car bottom as far as possible forthe passengers and luggage. The motor either stands in a case which canbe opened on all sides allowing the motor to be withdrawn in downward orupward direction, or else .the motor is mounted below the car bottom inhorizontal position.

lVhile the arrangement mentioned in the first place requires a motor ofvery little height which opposes itself to an economical design, a motormounted in horizontal position below the car bottom is not easilyaccessible unless the greater part of the bottom be arranged to befolded, this being un desirable inasmuchas it requires removal of thepassenger seats.-

All these drawbacks are avoided according to the present invention byarranging the motor preferably in horizontal position for horizontaldisplacement in a frame displaceably mounted below the car, so that bydisplacing the frame carrying the motor and accessories all these partscan easily be inspected and repaired. I

In the drawings affixed to this specification and forming part thereof arailroad motor car embodying my invention is illustrateddiagrammatically by Way of example,

Fig. 1 being a side elevation of part of the car with the motor arrangedin place below the car.

Fig. 2 is'a plan view, drawn to a larger scale of the motor andaccessories mounted on the displaceable frame.

Referring to the drawings, a is the car body and n is the under framecarrying the body. 0 and mare the body queen posts and p, g, r are thetruss rods of the'truss reinforcing the underframe n of the car. Thehorizontal rods 7' carry the frame on which the motor is mounted, thisframe being formed by two parallel longitudinal rails b and fourtransverse rails a connecting them. The middle rails c which arepreferably U-shaped in cross section rest directly on the rods 1 and canbe freely displaced thereon in a direction at right angles to thelongitudinal car axis.

On the middle. rails c is mounted the motor d. Near the side rails c aremounted two radiators e and fans f. g is the fuel tank, It atool box, ithe fly wheel and k is the Cardan shaft transmitting power to thedriving mechanism (not shown) arranged in a casing Z.

The frame 6, a carrying the motor and accessories is fixed in positionon the rods 7' of the truss by suitable means (not shown).

It can easily be shifted sideways without the Cardan shaft is beingdisengaged from the motor shaft or from the driving gear, the Cardanshaft being provided with a telescoping extension as usual. The framecarrying the motor can be shifted so far that the shaft 70 contacts withthe queen post an of thetruss. In this-position the motor can beinspected and repaired. The exhaust and the gearing connecting the motorwith the drivers stand should be designed in such a manner as to allow alateral displacement of the motor without first disengaging these parts.

As the fuel tank, radiator and other accessories are mounted on the sameframe, the motor can be started also when the frame carrying it isdisplaced outwards.

If it is desired to lift the motor off the car, the Cardan shaft is aswell as the exhaust and the governing mechanism are disengaged from themotor in a suitable manner and the frame I), a carrying the'motor andaccessories can then be withdrawn entirely.

Obviously the frame carrying the motor,

instead of being mounted for lateral dis placement on the horizontalrods of the truss, might also be suspended below the underframe of thecar in some other suitable manner. I may for instance also mount it nearone of the ends of the car in a position Where it can be displaced inlongitudinal' direction. e

I wish it to be understood that I do not desire to be limited to theexact details of construction shown and described, for obviousmodifications will occur to a person skilled in the art.

1. Railroad motor car comprising an underframe, a frame arranged belowsaid undert'rame for horizontal displaeement relatively to saidunderframe and an internal combustion motor mounted on said frame.

2. Railroad motor car comprising an underframe, a frame ar 'anged belowsaid underframe for horizontal displacement relatively to saidunderframe and an internal combustion motor mounted on said frame inhorizontal position.

3. Railroad motor car comprising an underframe, a frame arranged belowsaid underframe for horizontal displacement relatively to saidunderframe and an internal combustion motor, a fuel tank and a radiatormounted on said frame.

4. Railroad motor car comprising an underframe, a' truss mounted belowsaid undert'rame and a frame arranged on this truss for lateraldisplacement, an internal combustion motor being arranged on'sald frame.In testimony whereof I afiix my signature.

ERHARD GRUBLER.

